Is there any way we can do (Contract Billing) for hours of consumption? Or subject.

Is there any way we can do (Contract Billing) for hours of consumption? Or subject.

Hello, We have some customers in our MSP Service Desk.
We use the contracts option (Contractual Billing). In this option, it is very important to use the expiration date of the contract. Question:
Is there any way to make a "contract" for hours? Suppose we sell hours plans for service. Example: We sell 4 hours of service to a customer, so he could only use 4 hours of service.

Thank you very much,

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